Ball Type Check Valve Ductile Iron

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 10 Pieces pc

Supply Capability:: 100000 Pieces Per Year pc/month

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Ball Type Check Valve Ductile Iron

*Good quality with reasonable price.

*Qick deliver time and enough store of valves.

*Many types to choose.

Ball Type Check Valve Ductile Iron GGG40 DIN Standard

Design Standard:

Face to Face DIN3352-F1

Flanged Ends BS EN1092-2

Main Parts and Materials

No. Parts Name Material

1 Valve Body/Bonnet Ductile Iron GGG40/GGG50

2 Plug Malleable Cast Iron

3 Ball sealer Carbon steel A3+NBR

4 Seal O-ring NBR

5 Hex bolt Carbon Steel Zinc Plated 45#

Specifications

flanged Swing Check Valve

size: 1/2"-42"

material: steel

Certification:ISO9001,ISO14001,API609,CE0036

Guarantee: 18months

Q: The working principle and structure description of the mute check valve: 1, when the medium according to the provisions of the direction of flow, the valve by the media force, is open; the medium back, due to weight and disc valve by the medium reverse force, so that the sealing surface of the valve flap and valve seat sealing and closed, to prevent the media counter to.2, the body and valve sealing surface using stainless steel surfacing.3, the length of the valve according to the provisions of GB12221-1989, flange connection size according to the provisions of JB/T79-1994.

Q: Can the check valve be used on the steam pipe?: The check valve can be used on the steam pipe, but only the right material.General steam pressure WCB, temperature and pressure with the then high chromium molybdenum steel. The inside of the valve should be taken into account, depending on the pressure difference.

Q: Check valve note BC/PISTON: SPR-L what does that mean?: BC==Bolted Cover/ bolted bonnetPISTON== lifting typeSPR-L==Spring-loaded/ is loaded with springsTogether, it is: a spring-loaded check valve. Bolted bonnet (this is common)

Q: Why can't the check valve on the air pipe be used when the wind speed is less than 8 meters?: First of all, you must understand the working principle of the check valve, indeed, as you said, you can adjust the position of the hammer by adjusting the position of the drop hammer.If you are in their own design and production, consider the thickness of the blade, drop hammer size, weight, and other parameters considered.Hope to be of help to you!

Q: The difference between swing check valve and lift check valve: Standard light valve professionals answer the difference between the lift check valve and the swing check valve:Lift check valves: check valves slide along the vertical centerline of the valve. The lift check valves can only be installed on the horizontal pipe.

Q: There is a check valve at the inlet of Haier electric water heater to prevent water from flowing back. Because there are many hot water used in the house, should the hot water be fitted with check valve?Can the hot water outlet be fitted with check valves? The hot water pipe is too long for hot water to flow back into the heater... Is it possible to install two check valves to affect the normal use of the heater?: Landlord that is not a check valve, it is a relief valve, the internal pressure of electric water heater is too large, from the relief valve relief pressure, pressure relief will flow from above, and there is relief valve installed at the entrance of cold water.

Q: What does the check valve "H41F" mean?: According to the provisions of the JB/T 308-2004 valve type programming method:H== check valve4== connection: flange type1== structure form: lifting typeF== sealing surface material: fluorine plastic

Q: What's the difference between the h76x check valve h77x?: H76x check valve h77x distinction: h76x check valve is a clamp type double valve swing structure, h77x is the clamp butterfly type structure.

Q: Are check and check valves the same kind of thing?: The same thing is not the same as it is

Q: How can the fast closing noise check valve prevent water hammer?: Biaoguan valve that once the pump stopped, check valve spool in the spring or other auxiliary device for double end under the action of force balance in advance to the closed position, can greatly reduce the amount of water and initial water reflux falling height, water hammer force is calculated by gravity superposition, to reduce the amount of water is equal to the reduced gravity, but fell short height reduces the inertia time is relatively reduced speed, and can prevent the formation of destructive or reduce water hammer water hammer.

Our products are in accordance with different standards, such as API, DIN, JIS, BS, and GB, as well as non-standards. We also provide OEM products according to client requirements. Our products are widely used in oil refinery, petroleum, chemical plant, power station, natural gas, and civil industry. We have obtained ISO9001 International Quality Management System Certificate.

1. Manufacturer Overview

Location	Jiangsu,China
Year Established	2001
Annual Output Value	US$10 Million - US$50 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe
Company Certifications	ISO9001

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:	English
b) Factory Information
Factory Size:
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered
Product Price Range	High and/or Average